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Effects of diet on tooth length, wear and growth in guinea pigs

Other factors than diet abrasiveness are more likely causes for dental problems observed in guinea pigs.

In this study, scientists studied the effects of four
different pelleted diets of increasing abrasiveness [due to both internal
(phytoliths) and external abrasives (sand)] or whole grass hay fed for two
weeks each in random order to 16 guinea pigs on incisor growth and wear, and
tooth length of incisors and cheek teeth.

There was a positive correlation between wear and growth of
incisors. Tooth lengths depended both on internal and external abrasives, but
only upper incisors were additionally affected by the feeding of whole hay.
Diet effects were most prominent in anterior cheek teeth. Cheek tooth angle did
not become shallower with decreasing diet abrasiveness, suggesting that a lack
of dietary abrasiveness does not cause the typical ‘bridge formation’ of
anterior cheek teeth frequently observed in guinea pigs.

The findings suggest that other factors than diet
abrasiveness, such as mineral imbalances and in particular hereditary
malocclusion, are more likely causes for dental problems observed in this
species.

July 2015

The July 2015 issue of Petfood Industry profiles Plato Pet Treats, a California-based company that makes premium pet treats using the best ingredients available. Learn how Plato uses natural and locally sourced ingredients and makes its products in-house for optimal quality. Also find out how its “Plato Wags Back” program provides support to rescues and shelters that feed and house homeless dogs.